Development of Dam-Break Model Considering Real Case Studies with Asymmetric Reservoirs

Dam-break flow is known as one of the most horrible phenomena. Some hypothetical reservoir geometries were evaluated in literature, but in nature, each reservoir has a unique geometry. In the present research, dam-break flow was studied based on different reservoir geometries using FLOW-3D. Six rese...

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Autores principales:	Ahmad Ferdowsi, Mahmood Nemati, Saeed Farzin
Formato:	article
Lenguaje:	EN
Publicado:	Pouyan Press 2021
Materias:	dam-break reservoir geometry unsteady flow computational fluid dynamics (cfd) flow-3d Computer engineering. Computer hardware TK7885-7895
Acceso en línea:	https://doaj.org/article/0e6da4ae041042bea0eb83c86f8b028a
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id	oai:doaj.org-article:0e6da4ae041042bea0eb83c86f8b028a
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spelling	oai:doaj.org-article:0e6da4ae041042bea0eb83c86f8b028a2021-12-03T15:27:45ZDevelopment of Dam-Break Model Considering Real Case Studies with Asymmetric Reservoirs2588-695910.22115/cepm.2021.311759.1188https://doaj.org/article/0e6da4ae041042bea0eb83c86f8b028a2021-10-01T00:00:00Zhttp://www.jcepm.com/article_140633_7b858484bf4d2db21441ad7442fe431b.pdfhttps://doaj.org/toc/2588-6959Dam-break flow is known as one of the most horrible phenomena. Some hypothetical reservoir geometries were evaluated in literature, but in nature, each reservoir has a unique geometry. In the present research, dam-break flow was studied based on different reservoir geometries using FLOW-3D. Six reservoirs were considered: reservoirs R1 and R2 belonged to Mahabad Dam (Iran) and Tignes Dam (France), with asymmetric reservoirs, respectively; reservoirs R3 and R4 had symmetrical trapezoidal reservoirs with angles 30 and 45 degrees, respectively; reservoir R5 had a rectangular shape, extending from one side; and reservoir R6 had a long reservoir, which also was used to verify FLOW-3D. The model performance was verified by experimental results and FLUENT model in literature. Results showed FLOW-3D with mesh sizes 30×30×30 mm and k-ɛ turbulence model outperformed FLUENT, based on R2, RMSE, and MAE. The results of water levels and flow velocities at five points proved that dam-break flow could vary from one dam to another, considering reservoir geometry. Peak water levels and velocities have been measured to show how reservoir geometry could cause catastrophic flow.Ahmad FerdowsiMahmood NematiSaeed FarzinPouyan Pressarticledam-breakreservoir geometryunsteady flowcomputational fluid dynamics (cfd)flow-3dComputer engineering. Computer hardwareTK7885-7895ENComputational Engineering and Physical Modeling, Vol 4, Iss 4, Pp 39-63 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	dam-break reservoir geometry unsteady flow computational fluid dynamics (cfd) flow-3d Computer engineering. Computer hardware TK7885-7895
spellingShingle	dam-break reservoir geometry unsteady flow computational fluid dynamics (cfd) flow-3d Computer engineering. Computer hardware TK7885-7895 Ahmad Ferdowsi Mahmood Nemati Saeed Farzin Development of Dam-Break Model Considering Real Case Studies with Asymmetric Reservoirs
description	Dam-break flow is known as one of the most horrible phenomena. Some hypothetical reservoir geometries were evaluated in literature, but in nature, each reservoir has a unique geometry. In the present research, dam-break flow was studied based on different reservoir geometries using FLOW-3D. Six reservoirs were considered: reservoirs R1 and R2 belonged to Mahabad Dam (Iran) and Tignes Dam (France), with asymmetric reservoirs, respectively; reservoirs R3 and R4 had symmetrical trapezoidal reservoirs with angles 30 and 45 degrees, respectively; reservoir R5 had a rectangular shape, extending from one side; and reservoir R6 had a long reservoir, which also was used to verify FLOW-3D. The model performance was verified by experimental results and FLUENT model in literature. Results showed FLOW-3D with mesh sizes 30×30×30 mm and k-ɛ turbulence model outperformed FLUENT, based on R2, RMSE, and MAE. The results of water levels and flow velocities at five points proved that dam-break flow could vary from one dam to another, considering reservoir geometry. Peak water levels and velocities have been measured to show how reservoir geometry could cause catastrophic flow.
format	article
author	Ahmad Ferdowsi Mahmood Nemati Saeed Farzin
author_facet	Ahmad Ferdowsi Mahmood Nemati Saeed Farzin
author_sort	Ahmad Ferdowsi
title	Development of Dam-Break Model Considering Real Case Studies with Asymmetric Reservoirs
title_short	Development of Dam-Break Model Considering Real Case Studies with Asymmetric Reservoirs
title_full	Development of Dam-Break Model Considering Real Case Studies with Asymmetric Reservoirs
title_fullStr	Development of Dam-Break Model Considering Real Case Studies with Asymmetric Reservoirs
title_full_unstemmed	Development of Dam-Break Model Considering Real Case Studies with Asymmetric Reservoirs
title_sort	development of dam-break model considering real case studies with asymmetric reservoirs
publisher	Pouyan Press
publishDate	2021
url	https://doaj.org/article/0e6da4ae041042bea0eb83c86f8b028a
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Development of Dam-Break Model Considering Real Case Studies with Asymmetric Reservoirs

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